Anden Yamidoro
Anden Yamidoro is the leader of the Kimon Clan who wants to overthrow the Hiruko Clan. He wants the Dragon Stone so he can use its fortune to overtake the shogun.
He is later revealed to be the brother of Mufu, leader of the Hiruko clan. Yamidoro and Mufu are identical twins who reside in what is later revealed to be robotic bodies.